Wasn't amazon but this is exactly what happened, they mandated "back to the office, no exceptions" last summer, I put my notice in and went to work for a company that was 100% remote, within a year I got promoted from lead upwards.

Turns out sometimes not only is the grass greener but it's much better tasting as well.

Ironically the place I left announced a "developers can work from home forever" policy a couple of months ago (after they'd lost 7 out of 9 senior devs off their 9 teams - the attrition rate wasn't much lower for non-seniors).

They are so fucked it's not even funny - literally decades of accumulated domain/business knowledge walked out the door.